gridiron pendulum造句
例句與造句
- It should not be confused with the bimetallic mechanism for correcting for thermal expansion in his gridiron pendulum.
- The gridiron pendulum consists of alternating parallel rods of two metals with different thermal expansion coefficients, such as steel and brass.
- The deadbeat escapement invented in 1675 by Richard Towneley and popularized by George Graham in 1721 and the gridiron pendulum by John Harrison in 1726.
- He invented the gridiron pendulum, consisting of alternating brass and iron rods assembled so that the thermal expansions and contractions essentially cancel each other out.
- Zinc-steel gridiron pendulums are made with 5 rods, but the thermal expansion of brass is closer to steel, so brass-steel gridirons usually require 9 rods.
- It's difficult to find gridiron pendulum in a sentence. 用gridiron pendulum造句挺難的
- Gridiron pendulums became so associated with good quality that, to this day, many ordinary clock pendulums have decorative'fake'gridirons that don't actually have any temperature compensation function.
- Gridiron pendulums adjust to temperature changes faster than mercury pendulums, but scientists found that friction of the rods sliding in their holes in the frame caused gridiron pendulums to adjust in a series of tiny jumps.
- Gridiron pendulums adjust to temperature changes faster than mercury pendulums, but scientists found that friction of the rods sliding in their holes in the frame caused gridiron pendulums to adjust in a series of tiny jumps.
- The gridiron pendulum was used during the Industrial Revolution period in regulator clocks, precision clocks employed as time standards in factories, laboratories, office buildings, and post offices to schedule work and set other clocks.
- The "'gridiron pendulum "'was a temperature-compensated clock pendulum invented by British clockmaker John Harrison around 1726 and later improved by period of the pendulum's swing depends on its length, so pendulum clocks rate varied with changes in ambient temperature, causing inaccurate timekeeping.